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annotate chansession.h @ 1629:258b57b208ae

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Fix for issue successfull login of disabled user (#78) This commit introduces fix for scenario: 1. Root login disabled on dropbear 2. PAM authentication model enabled While login as root user, after prompt for password user is being notified about login failrue, but after second attempt of prompt for password within same session, login becames succesfull. Signed-off-by: Pawel Rapkiewicz <[email protected]>
author vincentto13 <33652988+vincentto13@users.noreply.github.com>
date Wed, 20 Mar 2019 15:03:40 +0100
parents 0c16b4ccbd54
children 8a7d26e86a56
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #ifndef DROPBEAR_CHANSESSION_H_
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26 #define DROPBEAR_CHANSESSION_H_
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28 #include "loginrec.h"
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29 #include "channel.h"
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30 #include "listener.h"
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32 struct exitinfo {
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34 int exitpid; /* -1 if not exited */
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35 int exitstatus;
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36 int exitsignal;
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37 int exitcore;
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38 };
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39
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40 struct ChanSess {
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41
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42 char * cmd; /* command to exec */
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43 pid_t pid; /* child process pid */
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45 /* pty details */
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46 int master; /* the master terminal fd*/
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47 int slave;
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48 char * tty;
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49 char * term;
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51 /* exit details */
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52 struct exitinfo exit;
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53
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55 /* These are only set temporarily before forking */
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56 /* Used to set $SSH_CONNECTION in the child session. */
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57 char *connection_string;
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58 /* Used to set $SSH_CLIENT in the child session. */
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59 char *client_string;
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61 #if DROPBEAR_X11FWD
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62 struct Listener * x11listener;
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63 int x11port;
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64 char * x11authprot;
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65 char * x11authcookie;
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66 unsigned int x11screennum;
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67 unsigned char x11singleconn;
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68 #endif
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70 #if DROPBEAR_SVR_AGENTFWD
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71 struct Listener * agentlistener;
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72 char * agentfile;
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73 char * agentdir;
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74 #endif
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76 #if DROPBEAR_SVR_PUBKEY_OPTIONS_BUILT
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77 char *original_command;
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78 #endif
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79 };
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81 struct ChildPid {
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82 pid_t pid;
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83 struct ChanSess * chansess;
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84 };
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87 void addnewvar(const char* param, const char* var);
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89 void cli_send_chansess_request(void);
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90 void cli_tty_cleanup(void);
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91 void cli_chansess_winchange(void);
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92 #if DROPBEAR_CLI_NETCAT
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93 void cli_send_netcat_request(void);
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94 #endif
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96 void svr_chansessinitialise(void);
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97 void svr_chansess_checksignal(void);
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98 extern const struct ChanType svrchansess;
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100 struct SigMap {
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101 int signal;
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102 char* name;
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103 };
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105 extern const struct SigMap signames[];
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106
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107 #endif /* DROPBEAR_CHANSESSION_H_ */